Refrigerator

Abstract

A refrigerator includes: a main body comprising a storage room; a door rotatably coupled to the main body and configured to open or close the storage room; and a water supply device on a rear surface of the door. The water supply device includes: a water supply case comprising a bucket installation space; a water level sensor configured to detect a water level of a water bucket in the bucket installation space; a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; a lever in the water supply case and configured to be manually operable; and a second water supply port configured to supply water based on operation of the lever by a user.

The invention claimed is: 
     
         1 . A refrigerator comprising:
 a main body comprising a storage room;   a door rotatably coupled to the main body and configured to open or close the storage room; and   a water supply device on a rear surface of the door,   wherein the water supply device comprises:
 a water supply case comprising a bucket installation space; 
 a water level sensor configured to detect a water level of a water bucket in the bucket installation space; 
 a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; 
 a lever in the water supply case and configured to be manually operable; and 
 a second water supply port configured to supply water based on operation of the lever by a user, 
   wherein the water supply case further comprises a coupling configured to couple the water supply case to the rear surface of the door,   wherein the door comprises:
 a door outer plate; 
 a door inner plate forming the rear surface of the door and coupled to the door outer plate, the door inner plate comprising an inner plate hole; 
 an insulation provided between the door outer plate and the door inner plate; and 
 a grommet configured to prevent the insulation from entering inside of the storage room, the grommet coupled to the inner plate hole, 
   wherein the water supply case further comprises a coupling hole, and   wherein the coupling is coupled to the grommet by penetrating the coupling hole.   
     
     
         2 . The refrigerator of  claim 1 , wherein a distance between the second water supply port and a rotation axis of the door is larger than a distance between the first water supply port and the rotation axis. 
     
     
         3 . The refrigerator of  claim 1 , wherein
 the door comprises a pair of vertical dykes protruding in a rear direction of the refrigerator and spaced from each other,   the pair of vertical dykes comprises a first vertical dyke in a first side of the door, the first side being towards a rotation axis of the door, and a second vertical dyke that is in a second side of the door, opposite to the first vertical dyke, and   the water supply case is coupled to the second vertical dyke and spaced from the first vertical dyke.   
     
     
         4 . The refrigerator of  claim 3 , wherein the second vertical dyke comprises a dyke bead protruding from an inner side surface of the second vertical dyke, and
 the water supply case further comprises a case bead groove in which the dyke bead is inserted.   
     
     
         5 . The refrigerator of  claim 3 , further comprising a door basket in a space between the water supply case and the first vertical dyke, the door basket comprising a goods space in which goods are configured to be accommodated. 
     
     
         6 . The refrigerator of  claim 5 , wherein the door basket further comprises:
 a first basket bead groove at one surface of the door basket and configured to couple the door basket to the first vertical dyke; and   a second basket bead groove formed at another surface of the door basket, opposite to the one surface of the door basket, and configured to couple the door basket to the water supply case.   
     
     
         7 . The refrigerator of  claim 6 , wherein the first basket bead groove is spaced from the second basket bead groove in front-rear and left-right directions of the refrigerator. 
     
     
         8 . A refrigerator comprising:
 a main body comprising a storage room;   a door rotatably coupled to the main body and configured to open or close the storage room; and   a water supply device on a rear surface of the door,   wherein the water supply device comprises:
 a water supply case comprising a bucket installation space; 
 a water level sensor configured to detect a water level of a water bucket in the bucket installation space; 
 a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; 
 a lever in the water supply case and configured to be manually operable; and 
 a second water supply port configured to supply water based on operation of the lever by a user, 
   wherein the water supply case further comprises a lever accommodating groove recessed from a front surface of the water supply case,   wherein the lever is on the lever accommodating groove, and   wherein the lever accommodating groove comprises a first lever accommodating groove, and a second lever accommodating groove formed inside the first lever accommodating groove in such a way as to form a step with the first lever accommodating groove.   
     
     
         9 . The refrigerator of  claim 8 , wherein the lever comprises a lever frame coupled to the water supply case and accommodated in the second lever accommodating groove, and a lever body rotatably coupled to the lever frame and configured to be accommodated in the first lever accommodating groove. 
     
     
         10 . A refrigerator comprising:
 a main body comprising a storage room;   a door rotatably coupled to the main body and configured to open or close the storage room; and   a water supply device on a rear surface of the door,   wherein the water supply device comprises:
 a water supply case comprising a bucket installation space; 
 a water level sensor configured to detect a water level of a water bucket in the bucket installation space; 
 a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; 
 a lever in the water supply case and configured to be manually operable; and 
 a second water supply port configured to supply water based on operation of the lever by a user, 
   wherein the water supply case further comprises a lever accommodating groove recessed from a front surface of the water supply case,   wherein the lever is on the lever accommodating groove, and   wherein the refrigerator further comprises a cover rib protruding from the front surface of the water supply case along borders of the lever accommodating groove.   
     
     
         11 . A refrigerator comprising:
 a main body comprising a storage room;   a door rotatably coupled to the main body and configured to open or close the storage room; and   a water supply device on a rear surface of the door,   wherein the water supply device comprises:
 a water supply case comprising a bucket installation space; 
 a water level sensor configured to detect a water level of a water bucket in the bucket installation space; 
 a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; 
 a lever in the water supply case and configured to be manually operable; and 
 a second water supply port configured to supply water based on operation of the lever by a user, 
   wherein the water supply device further comprises a connection tube that comprises an inlet and an outlet, the connection tube coupled to the water supply case,   wherein the refrigerator further comprises a water supply hose configured to supply water to the connection tube, the water supply hose connected to the inlet of the connection tube, and   wherein the second water supply port comprises a water cork detachably coupled to the outlet of the connection tube.   
     
     
         12 . The refrigerator of  claim 11 , wherein the connection tube further comprises a connection tube body, and a plurality of cork fixing rings coupled to an inner circumferential surface of the connection tube body and configured to fix the water cork. 
     
     
         13 . The refrigerator of  claim 12 , wherein the water cork comprises a water cork body, and a protrusion ring protruding from an outer circumferential surface of the water cork body, and the protrusion ring is configured to be coupled between the plurality of cork fixing rings.